GB1303316A - - Google Patents
Info
- Publication number
- GB1303316A GB1303316A GB1629770A GB1629770A GB1303316A GB 1303316 A GB1303316 A GB 1303316A GB 1629770 A GB1629770 A GB 1629770A GB 1629770 A GB1629770 A GB 1629770A GB 1303316 A GB1303316 A GB 1303316A
- Authority
- GB
- United Kingdom
- Prior art keywords
- section
- cone angle
- transition region
- valve
- conduit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/062—Construction of housing; Use of materials therefor of taps or cocks with conical plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
1303316 Valves ROCKWELL MFG CO 7 April 1970 [10 April 1969 30 March 1970] 16297/70 Heading F2V A valve comprises a body having a chamber in which a closure member is movably mounted to control fluid flow between points adjacent the chamber and a flow transition region extending from at least one of the points to one end of the body and having boundary walls which diverge at an equivalent cone angle substantially in the range from 6 to less than 20 degrees and terminate in an abruptly enlarged section C, Fig. 4. When the valve has a flow passageway of non-circular cross-section the rate of change of cross-sectional area with length in the transition region determines the equivalent cone angle. The provision of the section C enables the overall length of the valve to be reduced with minimum pressure drop. A radius r having a value of up to one quarter of the diameter D of the conduit to which the valve is to be connected joins the section which has an equivalent cone angle of more than 60 degrees with the remainder of the transition region. The conical section C may be replaced by a recess 52 as shown in Fig. 5. An internal thread may be provided in a parallel bore at the outer end of the transition region to receive a threaded end on a conduit. Alternatively, the region may be terminated in a manner suitable for butt or socket welding to a conduit. The cone angle is preferably in the range of 10 to 14 degrees and the invention may be applied to plug valves with circular, rectangular or trapezoidal parts or to ball, gate or globe valves.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US81514969A | 1969-04-10 | 1969-04-10 | |
US2377970A | 1970-03-30 | 1970-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1303316A true GB1303316A (en) | 1973-01-17 |
Family
ID=26697591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1629770A Expired GB1303316A (en) | 1969-04-10 | 1970-04-07 |
Country Status (4)
Country | Link |
---|---|
CA (1) | CA924701A (en) |
DE (1) | DE2016646C2 (en) |
FR (1) | FR2043211A5 (en) |
GB (1) | GB1303316A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110195761A (en) * | 2019-04-17 | 2019-09-03 | 武汉船用机械有限责任公司 | Hydraulic anticollision device, collision-prevention device |
CN110805720B (en) * | 2019-09-30 | 2021-08-06 | 安徽兰翔纺机科技有限公司 | Gate valve body produced in batch by lost foam process and production method thereof |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH135288A (en) * | 1928-05-31 | 1929-09-15 | Salgat Francis | Valve for fluid line. |
US1901255A (en) * | 1931-08-15 | 1933-03-14 | Continental Oil Co | Gate valve |
US2717758A (en) * | 1948-05-04 | 1955-09-13 | Walworth Co | Plug valves |
US2799467A (en) * | 1949-01-18 | 1957-07-16 | Rockwell Mfg Co | Venturi valve |
GB668925A (en) * | 1949-01-18 | 1952-03-26 | Rockwell Mfg Co | Venturi valve |
US2799468A (en) * | 1951-01-19 | 1957-07-16 | Walworth Co | Valves |
DE909165C (en) * | 1951-03-08 | 1954-04-15 | Hans Haferkamp | Gate valve |
US3005617A (en) * | 1957-11-29 | 1961-10-24 | Rockwell Mfg Co | Plug valve |
-
1970
- 1970-04-07 GB GB1629770A patent/GB1303316A/en not_active Expired
- 1970-04-08 DE DE19702016646 patent/DE2016646C2/en not_active Expired
- 1970-04-10 FR FR7013127A patent/FR2043211A5/fr not_active Expired
- 1970-04-10 CA CA079861A patent/CA924701A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2016646C2 (en) | 1983-10-27 |
FR2043211A5 (en) | 1971-02-12 |
DE2016646A1 (en) | 1970-11-05 |
CA924701A (en) | 1973-04-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |